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Fig. 2 | BMC Oral Health

Fig. 2

From: Comparation of the effectiveness of conventional needle irrigation and photon-induced photoacoustic streaming with sodium hypochorite in the treatment of teeth with apical periodontitis: a randomized clinical trial

Fig. 2

Representative radiographs and intraoral photographs of the treated teeth. A-E from CNI group, a 26-year-old female, complained of gum abscess of the left mandibular first molar for 2 weeks. Preoperative radiographs (A) assigned a PAI 5 score of tooth36#. Postoperative radiographs after root canal obturation (B). Preoperative intraoral photographs (C) showed the presence of fistula, with percussion tenderness, but without periodontitis. Intraoral photographs (D) of 1-week follow-up after root canal preparation showed the absence of fistula. Intraoral photographs (E) showed the final irrigation in CNI group. a-e from PIPS group, a 48-year-old male, complained of rotted teeth in his right mandibular posterior tooth for 1 year. Preoperative radiographs (a) assigned a PAI 5 score of tooth46#. Postoperative radiographs after root canal obturation (b). Preoperative intraoral photographs (c) showed the presence of mesio-proximal caries, with gingivitis, without percussion tenderness and fistula. Intraoral photographs (d) of 1-week follow-up after root canal preparation. Intraoral photographs (e) showed the final irrigation in PIPS group. Abbreviations: CNI, conventional needle irrigation. PIPS, photon-induced photoacoustic streaming. PAI, periapical index

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BMC Oral Health

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